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Date: Wed, 19 Aug 2015 10:33:26 -0400
From: Alain Espinosa <alainesp@...ta.cu>
To: john-dev@...ts.openwall.com
Subject: Re: 7z's KDF is unsalted
-------- Original message --------
From: Solar Designer <solar@...nwall.com>
Date:08/18/2015 5:45 PM (GMT-05:00)
To: john-dev@...ts.openwall.com
Cc:
Subject: Re: [john-dev] 7z's KDF is unsalted
> >And doesn't the AES step prevent rainbow tables for 7-Zip (even if it
> >doesn't prevent the speedup you've now implemented)?
>
> I'm not quite sure. Does it? It's a later step, just like the
> post-processing for WPA-PSK.
Yes, it prevents the use of rainbow tables. We can use precomputed tables, similar to WPA-PSK, but can't use the TMTO.
Regards,
Alain
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